Well-packing



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E. T.. WARNER. WELL PACKING Patented Deon. .11. 1894-.

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- E. T. WARNER.

. n WELL PACKING. No. 530,631. Patent'edvo. 1l, 1894.

UNITED STATES PATENT l"OFFICE.

EGERT T. WARNER., orY LwooD,-1NDIANA.

1WELL-PutoKING.l

SPECIFICATION forming part of Letters Patent No.v 530,631, datedDecember 11, 1894. v Application tiled February 10, 1894.. Serial No.499,811. (No model) To all whoml it may concern:

Be it known that I, "EGERT'T. WARNER, a c1t1zen of the United States,residing at Elwood, in the county lof Madison and State of .Ish

Indiana,rhave invented a new and useful Well-Packing, of whichv thefollowing is al specification. n

This invention relates to well packing for l gas or oil wells; and ithas for its object to effect certain improvements in packers for gas andoil wells, whereby efficient means shall be provided for completely4separating the lower fluid or water which accumulates in gas or oilwells belowthe upper fluid or gas.

To this end the main and primary object of the present invention is toconstruct a combination packer theparts'of which may be used eitherjointly or separately according to the depth of the well, to providemeans for properly separating the gas or oil from the lower fluid whichmay have collected therebelow, by either conducting such lower fluidseparately out of the well, or entirely cutting the same off fromcommunication with the upper fluid or gas.

With these and other objects in view, which will readily appear as thenature of the invention is better understood, the Asame consists in thenovel construction, combination, andr the packer which may be termed thelower or screw packer. Figl 6 is a 'detail sectional view on the liney-y of Fig. 5;

Referring to the accompanying drawings, A represents a portion of anordinary well tube employed in the tubing of a gas or oil well, and inthe present invention thewell tubing A is adapted to loosely passthrough a rubber packer collar B, such as 'ordinarily employedA in wellpacking, and which is adapted to be expanded'out against the sides ofthe well to hold the packing in position,

braces the upper end of the collar B.

andin the present invention the rubber collar B, is interiorlyshouldered at C, at the upper end of the bore therethrough, and in suchupper end' is tightly fitted the packer sleeve D, to which the upper endof the packer B, is wired or otherwise suitably fastened.

- The sleeve D, is adapted to loosely fit over the tube A, andis'disposed directly above the shoulder ring F, made fast on the tube A,and adapted to bear against the loweredge of the sleeve D, and theinterior. shoulder (l, of the collar B, according as the packer -isbeing lifted'out of or placed-in thel well.

The upper rubber packerB is provided with beveled upper and lower endsG, and the upper beveled end -is adapted to be engaged by the packer capH. The upper lpacker cap H, is interiorly threaded as at h, todetachably engage' the threaded portiongh, of the well tube A, so as tobe carried by the well tube, and at this point it is to be noted thatwhen the entire line of well tubing is freeto yield toits weight, suchweight will be placed on the cap H, andaA consequent pressure exertedonto the upperfendof the rubber packer B, and thereby cause the same toswell out or expand against the sides of the well. This may thereforeproperly be termed a pressure packer. The lower beveled `end G, of therubber packer collar B, is embraced b5 the lower packer cap I, which isprovided with a beveled flange J, to embrace and engage with the lowerbeveled end of the collar B, to properly hold the same in position, andthis beveled flange J, of the lower packer cap I, is reversely disposedto the inwardly beveled flange J', of the upper cap H, and which'em- Thelowerv packer cap I, embracing the lower end of4 thev collar B, isunthreaded and loosely receives the well tube A, to permit theV same tofreely work therethrough, but such packer cap is exteriorly threaded asat K, to removably engagethe upper threaded neck L, of thelongitudinallyslotted coupling cage M. The coupling cage M, is providedwith a series oflongitudinal slots N, having at .their upper ends theshouldered volf-sets O, to receive the wings of `thewinged-coupling'head P, adapted to slide in the slots of said cage. Thewinged coupling head P, isy interiorly threaded as at p, to engage thelower or inner IOO threaded end of the tube A, which passes through theupper packer, and the wings of said coupling head are adapted to rest onthe shoulders of the slot ott-sets when the packer is being placed inposition in the well so as to relieve the rubber B, from the weightofthe line of tubing above the coupling head.

The construction just described completes the upper pressure packer, ofthe combination packer, as adapted to be placed in position within a gasor oil well by the well tubing, and acts in the capacity of an ordinarypacker to pack the well above the gas or oil and to provide for theproper conducting of the gas or oil to the ltop of the well and point ofuse.

In placing the upper pressure packer in position within a well, thewinged coupling head rests in the shouldered o-Sets O, as the tubing isbeing turned in position, and the pressure of the cap H, is relievedfrom the upper end of the rubber B.

After positioning the packer, the tubing A, is turned so as to bring thewings of the coupling head out of the olf-sets 0, to permit the same toslidedownward in the slotsN, which movement places the entire weight ofthe line of tubing onto the upper end of the rubber collar B, andexpands the same out against the sides of the well, to tightly hold thedevice in position, and at this point it is to be noted that a packingwasher p', is arranged on the well tube above the head P, and ecctuallyprevents any gas or liquid from entering inside of the rubber collar andexpanding the same so as to interfere with the easypositionngthereof,wl1ich is quite common in most forms of packingemploying rubber collars.

ln the act of lifting the tubing A, the shoulder ring F, is broughtagainst the packer sleeve D, whereby the strain incident to removing thepacker is placed on top of the rubber instead of at the bottom as isusually the case, so that the rubber is prevented from expanding whenthe packer is being opened, but is stretched out so as to permit an easyremoval from the well, or the free turning of the well tube inside ofthe rubber without disturbing the same.

Ordinarily the upper pressure packer just described is used inconjunction with a lower screw packer which cuts olf the lowerfluid orwater from the gas or oil, which passes into the cage M, and out throughthe main Well tubing A, in the ordinary manner, and adapted to beremovably coupled to the lower end of the coupling cage M is thecylindrical closed fluid chamber R. The cylindrical chamber R, isprovided' at its upper end with the threaded opening r, which receivesthe tube or pipe fr', coupling the same to the cage M, and whichcorresponds in diameter to the well tubing, and takes the place of thewell tubing itself when the lower packer is placed in a well independentof the upper packer already described.

The closed iluid chamber R, is further promeans for drawing out thelower fluid or water to any convenient pointof discharge. saidcylindrical chamber R, is provided at its lower end with a left threadedopening S, which engages the left threaded upper end s, of the lowerpacker tubing T, onto which is itted a lower rubber collar B', providedwith beveled upper and lower ends G', the upper of which beveled endshas fitted thereover the flanged cap t, unthreaded to loosely fit overthe tubing T, while the lower beveled end of said collar B', is confinedby the beveled langc of the lower flanged cap t', interiorly threaded asat't2, to engage threads on the tubing T.

The packer tubing T, supports in position directly below the rubberpacker B', a slotted inlet cage U,'to admit the lower Iluid or waterinto the tubing and the chamber R, from which it is conducted to the toppf the well, and below the cage U, is supported in position theanchoring head V. The anchoring head V, is provided with a series oflongitudinal spring slots fu, which adjustably receive the curvedanchoring spring WV, projected above and below the head and con` finedtherein by the retaining rings w, removably engaging the exteriorlythreaded ends w', of said head. The anchoring springs W, are adjusted toand from the curved bases X, of the slots fu, by the adjusting screwsand are provided with twisted engaging points Y, which are adapted tobite in the sides ofthe well and prevent the packing from turningtherein when placed in position.

All of the screw joints of the combination packer are tightened beforeplacing the same in position except the left threaded joint S-s, and byturning the tubing in a direction fto screw the cylinder R, in position,the said cylinder will be screwed tightly onto the cap t, and therebyexert a screw pressure on the upper end of the rubber B', and expand thesame ont against the sides of the well. When it is desired to leave thelower screw packer just described in the well, it will be seen that bythe act of unscrewing the upper TheV portion of the well tubing to takeout that j portion above the cylinder or chamber R, the latter will bescrewed tightly onto the rubber B', so as to expand the saine againstthe well sides by screw pressure.

Preferably the two parts of the packer are used conjointly asillustrated, but it will be obvious that the lower screw packer may beseparately placed in position within a well by coupling the tubing A, inthe upper threaded opening r, of the screw cylinder or chamber R, andsubsequently removing this tubing in the manner already described. Itisto be further observed that in the event of not using the pipe rs, whenthe lower packer is used with or without the upper packer, the openingr2, may be suitably plugged to` cut o or separate the lower fluid orwater from the upper gas or oil'.

Changes inthe form, proportion and the minor details of construction maybe resorted t0 without departing from the principle or sacrificing anyof the advantages of .this in. vention.

Having thus describedthe invention, what is claimed, and jdesircd to besecured by Letters Patent, isf 1. In a well packing, the combinationwith aline of well tubing; of the upper rubber packer looselyar-rangedon the well tubing and ladapted to be expanded against thesides of the well by the weight of such tubing, an inlet cage for theupper packer and communicating with the well tubing below theupperpacker, a lower rubber packer connected with the cage of the upperpacker, an inlet cage for the lower packer below the same, and aseparate liuid conducting pipe arranged within the well tubing andcommunicating with the interior tubing of the lower packer, saidconducting pipe passing up through the upper packer and well tubing,substantially as set forth.

2. In a well'packng, the combination with the Well tubing; of'a slottedcombined coupling and inlet cage, a rubber packer loosely fitted overthe well tubing, a packer sleeve made fast in the inner upper end of therub-- ber packer a shoulder ring tted onto the tubing below said sleeve,ripper and lower packer-caps embracing the upper and lower ends of therubber packer and the upper of which is tted ou the well tubing, and awinged coupling head fitted on the lower end of the well tubing andarranged to work in said slotted cage, substantially as set forth.

.3. In a well packing, the combination with the well tubing; ofacombined coupling and inlet' cage provided with longitudinal slotshaving shouldered OEI-sets at their upper ends, a rubber collar looselyfitted over the well tubing'and having beveledupper and lower ends, aninterior shoulder, a packer sleeve made fastv within said collar, ashoul\ der ring fitted onto the tubing between said sleeve and theshoulder of the collar, upper and lower anged packer caps embracing theupper and lower'ends ofthe collar, the upper of said caps being fittedonto the well tubing and the lower cap being removably fittedin theupper end of said cage, and a v winged coupling head itted onto thelower end of the well tubing and working inside of said slotted cage andthe o-sets of the slots,

Y forth.

- 5. In av well packing, the combination with the Well tubing andpacking devices; of an anchoring head provided with a series of lonfgitudinal spring slots, anchoring springs adjustably mounted in saidslots and provided with twistedengaging points at their extrem itiesabove and below the anchoring head, and removable retainingringsengaging the upper and lower ends of said anchoring head to confinethe `spring ends therein, substantially as set forth. t

Intestimony that I claim the foregoing as my ownI have hereto affixed mysignature in the presence of two witnesses.

EGERT T. WARNER.

Witnesses: Y

A. F. BOURBON, WARD. L. RoAcH.

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